Description

03Х19Н15Г6М2АВ2 steel is used: for the production of forged blanks intended for the manufacture of welding wire.

Standards

Name

Code

Standards

Blanks. Of the workpiece. Slabs

В31

TU 14-1-1588-76

Chemical composition

Standard

C

S

P

Mn

Cr

Si

Ni

Fe

N

Mo

W

TU 14-1-1588-76

≤0.03

≤0.01

≤0.01

6-7.5

18-20

≤0.2

15-16.5

Rest

0.15-0.22

2.5-3.2

1.8-2.3

Fe is the basis. According to TU 14-1-1588-76, the chemical composition is presented for steel grade Sv-03Kh19N15G6M2AV2. Deviations in chemical composition are allowed: by carbon +0.010%, by nitrogen ± 0.020%, by silicon +0.050%, by sulfur + 0.5050%, by phosphorus +0.0050%. The cobalt content is allowed up to 2.00%. Other deviations are allowed by agreement of the parties.

Mechanical properties

Section, mm

sT|s0,2, MPa

σU, MPa

d5, %

y, %

KCU, kJ/m2

Ingots on the other 14-1-1588-76. Annealing in air 1050°C (in the graph indicated KCU KCU+20°C/KCU-196°C)

≥295

≥590

≥35

≥50

≥1960/980

Description mechanical marks

Name

Description

sT|s0,2

Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%

σU

Limit short-term strength

d5

Elongation after rupture

y

The relative narrowing

KCU

Toughness

Technological properties

Name

The value

Macrostructure and pollution

The macrostructure of the steel on the other 14-1-1588-76, check on cross microtemplate taken from the supplied profile should not have shrinkage porosity, gas bubbles, cracks, inclusions, electraprobe, inversion of the crust and other defects visible to the naked eye. Permitted defects of a macrostructure: Central porosity - 1 point, point heterogeneity - 1 point; - exudation square - 1 point. On the open metal smelting allowed the increase of the score of defects allowed to 2. In the metal ESR allowed layer-by-layer crystallization and light the path to a score of 3.

Particularities of production of goods

Supply on the other shall be 14-1-1588-76 the metal is melted in the open arc electric furnaces, plasma arc furnaces, and also obtained by the method of electroslag remelting.